Kansas Common Core Standards

6.EE.2.Write, read, and evaluate expressions in which letters stand for numbers.

6.EE.2.b.Identify parts of an expression using mathematical terms (sum, term, product, factor, quotient, coefficient); view one or more parts of an expression as a single entity. For example, describe the expression 2 (8 + 7) as a product of two factors; view (8 + 7) as both a single entity and a sum of two terms.